The nit picking is part of the fun of the show! Now the production values are slick but the shows just suck as you so rightly point out.
I remember seeing those inconsistencies when I was a kid in the 1950s watching it as a new show. And it was easy to see that they were close to the surface, with light waves on them from the surface. Just the same, I didn't miss an episode if I could help it.
SeaRat